July weather forecast
Metairie, LA

July continues the summer rhythm initiated by June. Metairie, during mid-summer, displays hot and muggy weather, with distinctive high humidity. A downtrend in the wind speed is observed, setting a more tranquil atmosphere. However, even amid this calm, it is worth noting the frequency of rainfall days spikes to its highest at 13.3 days. Consequently, Metairie witnesses its peak annual rainfall of 1.3in, the highest in the year.

Temperature

The warmest month is July, with an average high-temperature of 89.2°F (31.8°C) and an average low-temperature of 78.4°F (25.8°C).

Heat index

July's heat index is calculated to be a scorching 107.6°F (42°C). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

In Metairie, Louisiana, the average relative humidity in July is 75%.

Rainfall

July is the month with the most rainfall in Metairie. Rain falls for 13.3 days and accumulates 1.3" (33mm) of precipitation.

Daylight

The average length of the day in July in Metairie is 13h and 51min.
On the first day of July, sunrise is at 6:03 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 6:19 am and sunset at 7:54 pm CDT.

Sunshine

The average sunshine in July in Metairie, Louisiana, is 10.6h.

UV index

The months with the highest UV index in Metairie are May through September, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The UV index of 7 during July translates into the following guidance:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.